After selecting the widget containing a host with an excessive scan time you can dig into details and, begin your troubleshooting. Try to identify the culprit host and troubleshoot, and open a case with support to get more details. Exclude the culprit host from your regular scans. This will help your regular scans complete effectively without the delay of the culprit host. Then scan the culprit host independently.

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At this time, Dashboard and Widget JSON files are not interchangeable between application dashboards, meaning Vulnerability Management Beta Dashboard JSON files may only be used in VM Dashboard and AssetView JSON files may only be used in AssetView. If you make a mistake and import a JSON file from one application into the other, you must contact Qualys Support to have the error corrected in the database for your subscription.

Again, there is no way to reverse this mistake within the UI, it must be done in the database.

This is great, strangely something that I have been working on as well. I added this in a previous feature request but I'll add it here as well. I hope you incorporate it so that Groovy Scripts/Groovy Queries can be added directly to the widget instead of relying on tags.